High-speed amplitude modulator with a high modulation index based on a plasmonic resonant tunable metasurface.
Appl Opt
; 58(10): 2687-2694, 2019 Apr 01.
Article
em En
| MEDLINE
| ID: mdl-31045071
ABSTRACT
High-speed optical amplitude modulation is important for optical communication systems and sensors. Moreover, nano-optical modulators are important for developing optical-communication-aided high-speed parallel-operation processors and micro-biomedical sensors for inside-blood-capillary examinations or microsurgery operations. In this paper, we have designed a plasmonic resonant tunable metasurface with barium titanate (BTO) as a nanoscale optical modulator with a high modulation index and high speed. The BTO operated well in the VIS and near-IR ranges, enabling tunable optical devices with zero dispersion and high speed. The results obtained by rigorous finite-element method simulations have shown that the hypothesized device has good potential for fast modulation in related applications, e.g., modulators in nano-optical systems, nano-optical switches and nanosensors.
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01-internacional
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MEDLINE
Idioma:
En
Revista:
Appl Opt
Ano de publicação:
2019
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Article